Learn Ruby

Learn Ruby, one of the most beautiful, artful and yet handy programming languages. Practice writing Ruby code, collect points, & show off your skills now!

• Basic Concepts 
  • 1.1 Lesson: What is Ruby
  • 2.1 Lesson: Hello, Ruby!
  • 3.1 Lesson: Comments
  • 4.1 Lesson: Variables
  • 5.1 Lesson: Doing Math
  • 6.1 Lesson: Operator Precedence
  • 7.1 Lesson: Strings
  • 8.1 Lesson: Getting User Input
  • 9.1 Lesson: Module 1 Quiz
• Control Structures 
  • 10.1 Lesson: Booleans
  • 11.1 Lesson: Comparison Operators
  • 12.1 Lesson: if Statements
  • 13.1 Lesson: else/elsif/unless Statements
  • 14.1 Lesson: Logical Operators
  • 15.1 Lesson: case Statements
  • 16.1 Lesson: while and until Loops
  • 17.1 Lesson: Ranges
  • 18.1 Lesson: for Loops
  • 19.1 Lesson: Module 2 Quiz
• Collections 
  • 20.1 Lesson: Arrays
  • 21.1 Lesson: Array Manipulations
  • 22.1 Lesson: Hashes & Symbols
  • 23.1 Lesson: Nested Arrays & Hashes
  • 24.1 Lesson: Iterators
  • 25.1 Lesson: Letter Frequency Counter
  • 26.1 Lesson: Module 3 Quiz
• Methods 
  • 27.1 Lesson: Defining & Calling Methods
  • 28.1 Lesson: Method Parameters
  • 29.1 Lesson: Default and Optional Parameters
  • 30.1 Lesson: Return Values from Methods
  • 31.1 Lesson: Variable Scope
  • 32.1 Lesson: Recursion
  • 33.1 Lesson: Module 4 Quiz
• Object Oriented Programming 
  • 34.1 Lesson: Classes & Objects
  • 35.1 Lesson: Instance Variables
  • 36.1 Lesson: Instance Methods and Accessors
  • 37.1 Lesson: Accessor Methods
  • 38.1 Lesson: Class Methods & Variables
  • 39.1 Lesson: The to_s Method
  • 40.1 Lesson: Inheritance
  • 41.1 Lesson: super
  • 42.1 Lesson: Operator Overloading
  • 43.1 Lesson: Access Modifiers
  • 44.1 Lesson: A Simple Game
  • 45.1 Lesson: Module 5 Quiz
• Modules, Mixins, Standard Classes 
  • 46.1 Lesson: Modules and Mixins
  • 47.1 Lesson: Namespacing
  • 48.1 Lesson: Structs
  • 49.1 Lesson: Math and Time
  • 50.1 Lesson: Procs
  • 51.1 Lesson: Lambdas
  • 52.1 Lesson: Module 6 Quiz
• Working with Files 
  • 53.1 Lesson: Creating and Opening Files
  • 54.1 Lesson: Reading and Writing Files
  • 55.1 Lesson: Deleting Files
  • 56.1 Lesson: Getting File Info
  • 57.1 Lesson: Module 7 Quiz